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fio is an I/O tool meant to be used both for benchmark and stress/hardware verification. It has support for 19 different types of I/O engines (sync, mmap, libaio, posixaio, SG v3, splice, null, network, syslet, guasi, solarisaio, and more), I/O priorities (for newer Linux kernels), rate I/O, forked or threaded jobs, and much more. It can work on block devices as well as files. fio accepts job descriptions in a simple-to-understand text format. Several example job files are included. fio displays all sorts of I/O performance information, including complete IO latencies and percentiles. Fio is in wide use in many places, for both benchmarking, QA, and verification purposes. It supports Linux, FreeBSD, NetBSD, OpenBSD, OS X, OpenSolaris, AIX, HP-UX, Android, and Windows.

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2012-12-20 21:48 Back to release list
Fio 2.0.12.1

Se agregó soporte de la plataforma Android. Se redujo el consumo de memoria en Windows cuando se utiliza muchos archivos. Se agregó soporte para IO al azar no uniforme, usando distribuciones de pareto/zipf. Se proporcionó un generador aleatorio de LFSR más rápido. Se hicieron varios arreglos y mejoras en el motor de la red. Tenis de mesa red IO ahora es compatible. El reloj por defecto se aceleró, y se mejoró la exactitud del reloj de la CPU. Se corrigió un problema potencial de rendimiento de bi-modal en Linux con múltiples procesos y O_DIRECT. Se corrigió un bug de raza normal con hilos. Se agregaron opciones de control de trabajo y memoria NUMA. Se corrigió un error en el motor de carga de la CPU. Hubo varias otras correcciones y mejoras.
Android platform support was added. Memory consumption on Windows when using many files was reduced. Support for non-uniform random IO was added, using pareto/zipf distributions. A faster LFSR random generator was provided. Various fixes and improvements were made in the network engine. Ping-pong network IO is now supported. The default clock was sped up, and accuracy of the CPU clock was improved. A potential bi-modal performance issue on Linux with multiple processes and O_DIRECT was fixed. A timekeeping race bug with threads was fixed. NUMA job and memory control options were added. A bug in the CPU load engine was fixed. There were various other fixes and improvements.

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